442 MOLLUSCA FROM THE HOPE ISLANDS, N. QUEEKSLAKD, 



furrow, conveys a slightly turreted aspect to the shell. On the- 

 last whorl there is an additional lower row of incipient gemmules^ 

 beneath which the base suddenly contracts. Aperture subquad- 

 rate, canal short. Length 2-5; breadth 0-85 mm. 



Numerous specimens, from 5-10 fathoms, off the Hope Islands. 

 Distinguished by its small size, subcylindrical shape, and treble 

 row of large grains. 



This and the following species, together with several undescribed 

 forms, may be conveniently grouped in a new subgenus, which 

 may be defined as follows. 



JocuLATOR, subgen.nov. 



Shell small, dextral, of ovate or bulbous contour, with a smooth 

 subulate many-whorled protoconch. Type Cerithiopsis ridicula 

 Watson.-^' 



Cerithiopsis westiana, n.sp. 



(Plate xl., fig.58.) 



Shell small, elongate-conical. Colour ochraceous, beads buff^ 

 protoconch white. Whorls five and one-half, with a smooth 

 subulate protoconch of five and one-half whorls. Sculpture : 

 two rows to a whorl of comparatively large gemmules, the lower 

 row the smaller. A wider furrow runs between the rows of the 

 same than between those of adjacent whorls. On the periphery 

 of the last whorl is an unsegmented spiral cord, followed on the- 

 base by others in a diminishing series. Aperture subquadrate,. 

 canal short. Length 2-35; breadth 0-75 mm. 



Numerous specimens from 5-10 fathoms, off the Hope Islands. 

 The species appears to approach nearest to C. turrigera Watson, f 

 from Hawaii, which has, however, four rows of beads on the last 

 whorl, and is more contracted than the Queensland shell. The- 

 novelty is named in compliment to my friend. Miss Winifred 

 West, to whom I am indebted for so many excellent illustrations. 



*Chall. Zool. Rep. xv. 1886, p. 528, Pl.xxxviii., f.l. 

 tWatson, Chall. Rep. Zool., xv. 1886, p.529, Pl.xxxviii., f.2. 



